I could see the rerelease of classic characters in a future version of Disney Infinity for those who never purchased them, as the first wave contained quite a few "A-listers". Perhaps if they do, the skill tree will be comparable to the newer characters, and we'll hopefully see refreshed moves and animations as well.

Following the recently announced First Avenger Captain America and how we've been teased with the idea of new effects for 2 versions, I'm starting to think we might only get a few updates as they will want to do full reposes in a few years time for certain characters like Toy Story and Cars for the upcoming movies... however i can't see Lone Ranger or Agent P being redone